The engine P1185 Code has automobile dictionary meaning and it is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 1 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 5 for Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit. The P1185 engine code is a kind of powertrain problem and this problem can be fixed fast without changing any component from the car engine. The engine P1185 code for the pushrod style which usages solenoids to change the oil compression transported to the lifters. You always try to use right meaning of the engine code.